Gas concentration detection sensor



FIG. 1 is an enlarged perspective view of a third embodiment of a gas concentration detection sensor showing our new design;

FIG. 2 is a front view thereof, the back view thereof being a right-and-left reversed image;

FIG. 3 is a top view thereof, the bottom view thereof being a same image;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is an enlarged view thereof indicated in FIG. 1;

FIG. 7 is an enlarged internal-mechanism-omitted end view thereof; and,

FIG. 8 is an enlarged partial internal-mechanism-omitted end view thereof indicated in FIG. 2 and FIG. 5.

The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.

The dot-dash broken lines shown in the figures are to indicate a boundary between a claimed design and disclaimed portion, and those are not a part of a claimed design or disclaimed portion. 

CLAIM The ornamental design for a gas concentration detection sensor, as shown and described. 